1506220146 has 12 divisors (see below), whose sum is σ = 3263477022. Its totient is φ = 502073376.

The previous prime is 1506220129. The next prime is 1506220147. The reversal of 1506220146 is 6410226051.

It can be written as a sum of positive squares in only one way, i.e., 989794521 + 516425625 = 31461^2 + 22725^2 .

It is a super-2 number, since 2×1506220146² = 4537398256432522632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1506220147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41839431 + ... + 41839466.

Almost surely, 2^1506220146 is an apocalyptic number.

1506220146 is an abundant number, since it is smaller than the sum of its proper divisors (1757256876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1506220146 is a wasteful number, since it uses less digits than its factorization.

1506220146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83678905 (or 83678902 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1506220146 is about 38810.0521257058. The cubic root of 1506220146 is about 1146.2943470588.

Adding to 1506220146 its reverse (6410226051), we get a palindrome (7916446197).

The spelling of 1506220146 in words is "one billion, five hundred six million, two hundred twenty thousand, one hundred forty-six".